div{
    background-color: #F2F2F2;
}
#one{
    width: 100%;
    height: 6.2rem;
    background: rgb(61 61 61);
    display: flex;
    justify-content: center;
    flex-wrap: wrap;align-items: center;
    box-shadow:0px 4px 6px grey;
    position: fixed;
}
#three{
    /*height:709px;*/
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    position: relative;
    margin-bottom: 16px;
}
#eight{
    /*height: 6.28rem 80%;*/
    width:100%;
    margin-top: 32px;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
}
#eleven{
    width: 100%;
    margin-top: 0.8rem;
    background-color: #E0E0E0;
    display: flex;
}
.seven{
    width: 100%;
    height: 6.2rem;
    background: rgb(61 61 61);
    display: flex;
    justify-content: center;
    flex-wrap: wrap;align-items: center;
    box-shadow:0px 4px 6px grey;
    margin-bottom: 30px;

}